import Vue from 'vue'
import Router from 'vue-router'

Vue.use(Router)

/* Layout */
import Layout from '@/layout'

/**
 * Note: sub-menu only appear when route children.length >= 1
 * Detail see: https://panjiachen.github.io/vue-element-admin-site/guide/essentials/router-and-nav.html
 *
 * hidden: true                   if set true, item will not show in the sidebar(default is false)
 * alwaysShow: true               if set true, will always show the root menu
 *                                if not set alwaysShow, when item has more than one children route,
 *                                it will becomes nested mode, otherwise not show the root menu
 * redirect: noRedirect           if set noRedirect will no redirect in the breadcrumb
 * name:'router-name'             the name is used by <keep-alive> (must set!!!)
 * meta : {
 roles: ['admin','editor']    control the page roles (you can set multiple roles)
 title: 'title'               the name show in sidebar and breadcrumb (recommend set)
 icon: 'svg-name'/'el-icon-x' the icon show in the sidebar
 breadcrumb: false            if set false, the item will hidden in breadcrumb(default is true)
 activeMenu: '/example/list'  if set path, the sidebar will highlight the path you set
 }
 */
/**
 * asyncRoutes
 * the routes that need to be dynamically loaded based on user roles
 */
export const asyncRoutes = [
  {
    path: '/system',
    component: Layout,
    redirect: '/system/user',
    alwaysShow: true,
    name: 'system',
    meta: {title: '系统管理', icon: 'el-icon-setting', roles: ['admin']},
    children: [
      {
        path: 'user',
        name: 'user',
        component: () => import('@/views/user/index'),
        meta: {title: '用户管理', roles: ['admin']}
      },
      {
        path: 'role',
        name: 'role',
        component: () => import('@/views/role/index'),
        meta: {title: '角色管理', roles: ['admin']}
      },
      {
        path: 'dept',
        name: 'dept',
        component: () => import('@/views/dept/index'),
        meta: {title: '部门管理', roles: ['admin']}
      }
    ]
  },
  {
    path: '/base',
    component: Layout,
    redirect: '/base/student',
    alwaysShow: true,
    name: 'base',
    meta: {title: '基础管理', icon: 'el-icon-monitor', roles: ['admin', 'teacher']},
    children: [
      {
        path: 'student',
        name: 'student',
        component: () => import('@/views/student/index'),
        meta: {title: '学生管理', roles: ['admin', 'teacher']}

      },
      {
        path: 'course',
        name: 'course',
        component: () => import('@/views/course/index'),
        meta: {title: '课程管理', roles: ['admin', 'teacher']}
      },
      {
        path: 'clazz',
        name: 'clazz',
        component: () => import('@/views/clazz/index'),
        meta: {title: '班级管理', roles: ['admin', 'teacher']}
      },
      {
        path: 'attendance',
        name: 'attendance',
        component: () => import('@/views/attendance/index'),
        meta: {title: '考勤管理', roles: ['admin', 'teacher']}
      }
    ]
  },
  {
    path: '/source',
    component: Layout,
    redirect: '/source/upload',
    alwaysShow: true,
    name: 'source',
    meta: {title: '资源中心', icon: 'el-icon-document', roles: ['admin', 'teacher', 'student']},
    children: [
      {
        path: 'upload',
        name: 'upload',
        component: () => import('@/views/template/upload'),
        meta: {title: '文件上传', roles: ['admin', 'teacher']}

      },
      {
        path: 'download',
        name: 'download',
        component: () => import('@/views/template/download'),
        meta: {title: '文件下载', roles: ['admin', 'teacher', 'student']}
      }
    ]
  },
  {
    path: '/online',
    component: Layout,
    redirect: '/online/study',
    alwaysShow: true,
    name: 'online',
    meta: {title: '在线学习', icon: 'el-icon-video-camera-solid', roles: ['admin', 'teacher', 'student']},
    children: [
      {
        path: 'study',
        name: 'study',
        component: () => import('@/views/online/index.vue'),
        meta: {title: '在线课堂', roles: ['admin', 'teacher', 'student']}
      }
    ]
  }, {
    path: '/ai',
    component: Layout,
    redirect: '/ai/deepseek',
    alwaysShow: true,
    name: 'ai',
    meta: {title: 'Ai问答', icon: 'el-icon-chat-dot-round', roles: ['admin', 'teacher', 'student']},
    children: [
      {
        path: 'deepseek',
        name: 'deepseek',
        component: () => import('@/views/ai/index.vue'),
        meta: {title: 'DeepSeek', roles: ['admin', 'teacher', 'student']}
      }
    ]
  }
]

/**
 * constantRoutes
 * a base page that does not have permission requirements
 * all roles can be accessed
 */
export const constantRoutes = [
  {
    path: '/login',
    component: () => import('@/views/login/index'),
    hidden: true
  },
  {
    path: '/404',
    component: () => import('@/views/404'),
    hidden: true
  },
  {
    path: '/',
    component: Layout,
    redirect: '/dashboard',
    children: [
      {
        path: 'dashboard',
        name: 'Dashboard',
        component: () => import('@/views/dashboard/index'),
        meta: {
          title: '首页',
          icon: 'el-icon-house',
          /* 固定不能关闭 */
          affix: true
        }
      }
    ]
  },

  // 404 page must be placed at the end !!!
  {path: '*', redirect: '/404', hidden: true}
]

const createRouter = () => new Router({
  mode: 'hash',
  // mode: 'history', // require service support
  scrollBehavior: () => ({y: 0}),
  routes: constantRoutes
})

const router = createRouter()

// Detail see: https://github.com/vuejs/vue-router/issues/1234#issuecomment-357941465
export function resetRouter() {
  const newRouter = createRouter()
  router.matcher = newRouter.matcher // reset router
}

export default router
